Controlling device for gas-burners.



J. V. WENGBLIN. CONTROLLING DEVICE FOR GAS BURNERS.

APPLICATION FILED SEPT. 22, 1908.

Patented May 10, 1910.

1524/6 72 Z01.- WM 24,0 ,424

UNITED STATES PATENT OFFICE.

JOHAN VICTOR WENGELIN, OF GOTTENBORG, SWEDEN.

CONTROLLING DEVICE FOR GAS-BURNERS.

To all whom it may concern:

Be it known that I, JoHAN VICTOR VVENGELIN, a subject of the King ofSweden, and resident of Kyrkogatan 38, Gottenborg, in the Kingdom ofSweden, have invented certain new and useful Improvements in ControllingDevices for Gas-Burners, of which the following is a specification, reference being had therein to the accompanying drawing.

In apparatus hitherto known for turning on and oil" gas-burners and thelike by the variation of the gas-pressure, the said variation haseffected the turning on and off of the gas-cock or gas-valve directly.The said apparatus have the disadvantage of operating not perfectly,owing to the small amount of work, which the gas can perform.

This invention relates to an apparatus for turning on and off the gas,consisting of the combination of the part acted upon by the gas-pressureand an electric contact device, which in any suitable manner causes thegascock to turn.

Figures 1 and 2 in the accompanying drawing show as examples two formsof execution of the invention.

A, Fig. 1, is the frame of the apparatus, which is mounted in or outsidethe gas-lamp.

l is a small gas-holder, communicating with the gas-pipe. To the movablepart of the said gas-holder a rod 2 is fixed, guided in suitable manner,which rod consequently, is moved upward or downward, as the gas-pressureincreases or decreases respectively. To the top end of the rod a fork 4,a feed-pawl or the like is pivotally connected at P. The said fork isforced against an abutment 2 on the rod 2 by a spring 49, fixed to therod. A contact-disk 5 is rotatably mounted in the frame A above the fork4, which disk is provided with pins 6, projections or the like, whichthe fork 4 can engage. The said contact disk 5 is circular and providedwith conducting teeth 7, alternating with non-conducting teeth 8. Acontact spring 9 fixed to the frame A bears against the teeth of thedisk 5 and is connected with the terminal 10. The spindle 5 of the disk5 is connected in suitable manner with the terminal 11. Conductors 12and 13 connect the said terminals 10, 11 with an electrically actuatedmechanism,

Specification of Letters Patent.

Application filed September 22, 1908.

Patented May 10, 1910. Serial No. 454,232.

' which opens and closes the gas-cock, and

with the electric source respectively.

The number of the pins 6 and the movement of the rod 2 and the fork 4are so adapted, that the contact-disk is turned a distance correspondingto two teeth, each time the rod 2 is forced upward, so that the contactspring 9, normally bearing against a non-conducting tooth 8, comes incontact first with a conducting tooth 7 and then with the nextnon-conducting tooth. As the intermediate conducting tooth 7 passes thecontact-spring 9, the circuit of the gas-cock actuating mechanism isclosed, so that the gas is turned on. The next time the contactdisk isturned, the gas will be turned off. As the said mechanism forms no partof this invention it is not shown or described.

The advantages of the apparatus, described above are that thegas-pressure has to perform only a very small amount of work viz. theturning of the contact disk, for the turning on and off of the gas, thatthe closing and interrupting of the circuit are efl ected perfectly andwithout generating sparks and that owing to the great number of contactpieces the same contact is not always used.

A spring connection between the rod 2 and the fork 4 may be substitutedfor the pivotal connection, shown in the drawing.

In the form of execution shown in Fig. 2, a flexible diaphragm 3 mountedin a casing 3 is substituted for the gas-holder, the rod 2 being fixedto the said diaphragm. For the rest the arrangements are just the sameas in Fig. 1.

As mentioned above a feed-pawl may be substituted for the fork 4, whichpawl may engage the teeth 7 and 8 of the disk 5, so that the pins 6 canbe dispensed with.

Many other modifications may be made without exceeding the limits ofthis in vention.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is:

In a gas burner, the combination of a casing communicating with the gaspipe, a flexible diaphragm fixed in the said casing, a vertical rodprojecting through the upper part of the casing, a fork-shaped pawlcarried by the said rod, a circular rotatably mounted disk provided withconducting teeth alternating with non-conducting teeth, and with pinsarranged to be engaged by the said pawl, a contact piece in position tobear successively against the teeth, and electric conductors connectedwith said contact piece and with the disk.

In witness whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

J OHAN VICTOR VVENGELIN.

Vitnesses HELGE STUXBERG, TORSTEN OLEHN.

